I know this information is nearly 8 months old but it may be of assistance to Electricians that install HPM products (apologies if this has already been posted):

From the Sydney Morning Herald:

http://www.smh.com.au/news/national/fake-power-sockets-pose-fire-risk/2006/09/24/1159036415569.html

More information is available from the HPM website:

http://www.hpm.com.au/

Click on counterfeit products tab on left hand side for more links to files to identify the outlets.